Detail publikace
Crack kinking out of interface of two orthotropic materials under combined thermal/mechanical loading
ŠEVEČEK, O. KOTOUL, M. PROFANT, T. HRSTKA, M.
Anglický název
Crack kinking out of interface of two orthotropic materials under combined thermal/mechanical loading
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
en
Originální abstrakt
The problem of crack path stability along the interface between two orthotropic elastically dissimilar materials under the presence of in-plane residual stresses is analyzed using the concept of Finite Fracture Mechanics and matched asymptotic procedure. The complex stress intensity factor and the T-stress characterizing the stress state at the crack tip are calculated both for the thermal (residual stresses) and mechanical loading using the two-state integral. The matched asymptotic procedure together with FEM is used to derive the change of the potential energy induced by the incremental crack growth (and correspondingly the incremental energy release rate of such a crack), which is needed for the fracture criterion formulation. An energy based fracture criterion is introduced for this problem and it is investigated whether and how is the criterion for the prediction of crack kinking from the interface affected by residual stresses.
Anglický abstrakt
The problem of crack path stability along the interface between two orthotropic elastically dissimilar materials under the presence of in-plane residual stresses is analyzed using the concept of Finite Fracture Mechanics and matched asymptotic procedure. The complex stress intensity factor and the T-stress characterizing the stress state at the crack tip are calculated both for the thermal (residual stresses) and mechanical loading using the two-state integral. The matched asymptotic procedure together with FEM is used to derive the change of the potential energy induced by the incremental crack growth (and correspondingly the incremental energy release rate of such a crack), which is needed for the fracture criterion formulation. An energy based fracture criterion is introduced for this problem and it is investigated whether and how is the criterion for the prediction of crack kinking from the interface affected by residual stresses.
Klíčová slova anglicky
Interface crack, Finite Fracture Mechanics, Crack kinking, Fracture Criterion, FEM, T-stress
Vydáno
03.02.2020
Nakladatel
Elsevier
Místo
Netherlands
ISSN
0167-8442
Ročník
105
Číslo
1
Strany od–do
1–18
Počet stran
18
BIBTEX
@article{BUT160774,
author="Oldřich {Ševeček} and Michal {Kotoul} and Tomáš {Profant} and Miroslav {Hrstka},
title="Crack kinking out of interface of two orthotropic materials under combined thermal/mechanical loading",
year="2020",
volume="105",
number="1",
month="February",
pages="1--18",
publisher="Elsevier",
address="Netherlands",
issn="0167-8442"
}